jdk8-mips64-public/langtools: test/tools/javac/api/TestJavacTaskScanner.java@f4500abff1fd

7080464: langtools regression test failures when assertions are enabled
Reviewed-by: jjg

     1 /*

     2  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug     4813736

    27  * @summary Additional functionality test of task and JSR 269

    28  * @author  Peter von der Ah\u00e9

    29  * @library ./lib

    30  * @run main TestJavacTaskScanner TestJavacTaskScanner.java

    31  */

    33 import com.sun.tools.javac.api.JavacTaskImpl;

    34 import com.sun.tools.javac.parser.*;

    35 import com.sun.tools.javac.parser.Tokens.Token;

    36 import com.sun.tools.javac.util.*;

    37 import java.io.*;

    38 import java.net.*;

    39 import java.nio.*;

    40 import java.nio.charset.Charset;

    41 import java.util.Arrays;

    42 import javax.lang.model.element.Element;

    43 import javax.lang.model.element.TypeElement;

    44 import javax.lang.model.type.DeclaredType;

    45 import javax.lang.model.type.TypeMirror;

    46 import javax.lang.model.util.Elements;

    47 import javax.lang.model.util.Types;

    48 import javax.tools.*;

    50 import static javax.tools.StandardLocation.CLASS_PATH;

    51 import static javax.tools.StandardLocation.SOURCE_PATH;

    52 import static javax.tools.StandardLocation.CLASS_OUTPUT;

    54 public class TestJavacTaskScanner extends ToolTester {

    56     final JavacTaskImpl task;

    57     final Elements elements;

    58     final Types types;

    60     int numTokens;

    61     int numParseTypeElements;

    62     int numAllMembers;

    64     TestJavacTaskScanner(File file) {

    65         final Iterable<? extends JavaFileObject> compilationUnits =

    66             fm.getJavaFileObjects(new File[] {file});

    67         StandardJavaFileManager fm = getLocalFileManager(tool, null, null);

    68         task = (JavacTaskImpl)tool.getTask(null, fm, null, null, null, compilationUnits);

    69         task.getContext().put(ScannerFactory.scannerFactoryKey,

    70                 new MyScanner.Factory(task.getContext(), this));

    71         elements = task.getElements();

    72         types = task.getTypes();

    73     }

    75     public void run() {

    76         Iterable<? extends TypeElement> toplevels;

    77         try {

    78             toplevels = task.enter(task.parse());

    79         } catch (IOException ex) {

    80             throw new AssertionError(ex);

    81         }

    82         for (TypeElement clazz : toplevels) {

    83             System.out.format("Testing %s:%n%n", clazz.getSimpleName());

    84             testParseType(clazz);

    85             testGetAllMembers(clazz);

    86             System.out.println();

    87             System.out.println();

    88             System.out.println();

    89         }

    91         System.out.println("#tokens: " + numTokens);

    92         System.out.println("#parseTypeElements: " + numParseTypeElements);

    93         System.out.println("#allMembers: " + numAllMembers);

    95         check(numTokens, "#Tokens", 1222);

    96         check(numParseTypeElements, "#parseTypeElements", 136);

    97         check(numAllMembers, "#allMembers", 52);

    98     }

   100     void check(int value, String name, int expected) {

   101         // allow some slop in the comparison to allow for minor edits in the

   102         // test and in the platform

   103         if (value < expected * 9 / 10)

   104             throw new Error(name + " lower than expected; expected " + expected + "; found: " + value);

   105         if (value > expected * 11 / 10)

   106             throw new Error(name + " higher than expected; expected " + expected + "; found: " + value);

   107     }

   109     void testParseType(TypeElement clazz) {

   110         DeclaredType type = (DeclaredType)task.parseType("List<String>", clazz);

   111         for (Element member : elements.getAllMembers((TypeElement)type.asElement())) {

   112             TypeMirror mt = types.asMemberOf(type, member);

   113             System.out.format("%s : %s -> %s%n", member.getSimpleName(), member.asType(), mt);

   114             numParseTypeElements++;

   115         }

   116     }

   118     public static void main(String... args) throws IOException {

   119         String srcdir = System.getProperty("test.src");

   120         new TestJavacTaskScanner(new File(srcdir, args[0])).run();

   121     }

   123     private void testGetAllMembers(TypeElement clazz) {

   124         for (Element member : elements.getAllMembers(clazz)) {

   125             System.out.format("%s : %s%n", member.getSimpleName(), member.asType());

   126             numAllMembers++;

   127         }

   128     }

   130     /* Similar to ToolTester.getFileManager, except that this version also ensures

   131      * javac classes will be available on the classpath.  The javac classes are assumed

   132      * to be on the classpath used to run this test (this is true when using jtreg).

   133      * The classes are found by obtaining the URL for a sample javac class, using

   134      * getClassLoader().getResource(), and then deconstructing the URL to find the

   135      * underlying directory or jar file to place on the classpath.

   136      */

   137     public StandardJavaFileManager getLocalFileManager(JavaCompiler tool,

   138                                                         DiagnosticListener<JavaFileObject> dl,

   139                                                         Charset encoding) {

   140         File javac_classes;

   141         try {

   142             final String javacMainClass = "com/sun/tools/javac/Main.class";

   143             URL url = getClass().getClassLoader().getResource(javacMainClass);

   144             if (url == null)

   145                 throw new Error("can't locate javac classes");

   146             URI uri = url.toURI();

   147             String scheme = uri.getScheme();

   148             String ssp = uri.getSchemeSpecificPart();

   149             if (scheme.equals("jar")) {

   150                 javac_classes = new File(new URI(ssp.substring(0, ssp.indexOf("!/"))));

   151             } else if (scheme.equals("file")) {

   152                 javac_classes = new File(ssp.substring(0, ssp.indexOf(javacMainClass)));

   153             } else

   154                 throw new Error("unknown URL: " + url);

   155         } catch (URISyntaxException e) {

   156             throw new Error(e);

   157         }

   158         System.err.println("javac_classes: " + javac_classes);

   160         StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding);

   161         try {

   162             fm.setLocation(SOURCE_PATH,  Arrays.asList(test_src));

   163             fm.setLocation(CLASS_PATH,   Arrays.asList(test_classes, javac_classes));

   164             fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes));

   165         } catch (IOException e) {

   166             throw new AssertionError(e);

   167         }

   168         return fm;

   169     }

   170 }

   172 class MyScanner extends Scanner {

   174     public static class Factory extends ScannerFactory {

   175         public Factory(Context context, TestJavacTaskScanner test) {

   176             super(context);

   177             this.test = test;

   178         }

   180         @Override

   181         public Scanner newScanner(CharSequence input, boolean keepDocComments) {

   182             if (input instanceof CharBuffer) {

   183                 return new MyScanner(this, (CharBuffer)input, test);

   184             } else {

   185                 char[] array = input.toString().toCharArray();

   186                 return newScanner(array, array.length, keepDocComments);

   187             }

   188         }

   190         @Override

   191         public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {

   192             return new MyScanner(this, input, inputLength, test);

   193         }

   195         private TestJavacTaskScanner test;

   196     }

   197     protected MyScanner(ScannerFactory fac, CharBuffer buffer, TestJavacTaskScanner test) {

   198         super(fac, buffer);

   199         this.test = test;

   200     }

   201     protected MyScanner(ScannerFactory fac, char[] input, int inputLength, TestJavacTaskScanner test) {

   202         super(fac, input, inputLength);

   203         this.test = test;

   204     }

   206     public void nextToken() {

   207         super.nextToken();

   208         Token tk = token();

   209         System.err.format("Saw token %s %n", tk.kind);

   210         test.numTokens++;

   211     }

   213     private TestJavacTaskScanner test;

   215 }

Mercurial > jdk8-mips64-public > langtools / file revision

test/tools/javac/api/TestJavacTaskScanner.java@f4500abff1fd

test/tools/javac/api/TestJavacTaskScanner.java